3,4-dihydro Naratriptan
(Synonyms: N-甲基-3-(1,2,3,6-四氢-1-甲基-4-吡啶)-1H-吲哚-5-乙烷磺酰胺,Naratriptan Impurity B) 目录号 : GC14343
An impurity in the preparation of naratriptan
Cas No.:121679-20-7
Sample solution is provided at 25 µL, 10mM.
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pKi: 8.9 of Naratriptan for human 5-HT1B
3,4-dihydro Naratriptan is a selective serotonin 5-HT1B agonist.
5-HT1B receptors are widely distributed throughout the CNS with the highest concentrations found in the basal ganglia, frontal cortex, striatum, and the hippocampus. The function of the 5-HT1B receptor differs depending upon its location.
In vitro: 3,4-dihydro Naratriptan is an impurity formed during the preparation of naratriptan. Naratriptan had high affinity for human recombinant 5HT1B and 5HT1D receptors and could cause contractions of dog isolated basilar and middle cerebral artery. Naratriptan also caused small contractions of human isolated coronary arteries [1].
In vivo: In anaesthetized dogs, naratriptan caused selective vasoconstriction of the carotid arterial bed and, in anaesthetized rats, naratriptan selectively inhibited neurogenic plasma protein extravasation in the dura. In various antinociceptive tests, naratriptan had no effect even at high doses. In conscious rats and dogs, naratriptan had high oral bioavailability [1].
Clinical trial: Naratriptan has been approved for acute oral migraine therapy. In two Phase III trials of naratriptan compared with placebo, relief at four hours was obtained in 60% and 68% of patients using the 2.5-mg dose, with recurrence of headache in 24 hours in 27% and 28% of patients. Adverse effects of naratriptan were found to be similar to placebo, and its tolerability appeared superior compared with studies of other oral triptans [2].
References:
[1] Connor HE, Feniuk W, Beattie DT, North PC, Oxford AW, Saynor DA, Humphrey PP. Naratriptan: biological profile in animal models relevant to migraine. Cephalalgia. 1997 May;17(3):145-52.
[2] Dulli DA. Naratriptan: an alternative for migraine. Ann Pharmacother. 1999 Jun;33(6):704-11.
| Cas No. | 121679-20-7 | SDF | |
| 别名 | N-甲基-3-(1,2,3,6-四氢-1-甲基-4-吡啶)-1H-吲哚-5-乙烷磺酰胺,Naratriptan Impurity B | ||
| 化学名 | N-methyl-3-(1,2,3,6-tetrahydro-1-methyl-4-pyridinyl)-1H-indole-5-ethanesulfonamide | ||
| Canonical SMILES | O=S(CCC1=CC=C2C(C(C3=CCN(C)CC3)=CN2)=C1)(NC)=O | ||
| 分子式 | C17H23N3O2S | 分子量 | 333.4 |
| 溶解度 | ≤0.1mg/ml in ethanol;10mg/ml in DMSO;10mg/ml in dimethyl formamide | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
 |
1 mg | 5 mg | 10 mg |
| 1 mM | 2.9994 mL | 14.997 mL | 29.994 mL |
| 5 mM | 0.5999 mL | 2.9994 mL | 5.9988 mL |
| 10 mM | 0.2999 mL | 1.4997 mL | 2.9994 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet